Free tool

Compress image to 100 KB the size the form asks for, first try.

Drop a photo, keep the 100 KB target, download a file the upload accepts. Passport photos, ID scans, applications and listings included.

Compress image to 100 KB at a glance

content.win compresses images to an exact size in KB, with no daily cap, which most free compressors only offer behind an account. It never returns a file larger than the one you gave it.

Works with
JPG, PNG and WebP. Several at once.
Comes back as
The same format, smaller, at an exact target size in KB or at a quality you pick.
Runs
In your browser.
Limits
No daily limit and no cap on how many files. Images up to 24 megapixels.
Price
Free. No account, no watermark.

How to compress an image to 100 KB

  1. Drop the images in. JPG, PNG or WebP, one or several.
  2. The target is already set to 100 KB. Change the number if the form says something else.
  3. Download. Each file lands at or under the target, as large and sharp as that size allows.

Getting under 100 KB

What fits
A 1200 pixel wide photo fits comfortably in 100 KB as a JPG. A 4000 pixel phone photo has to lose detail to get there; the tool lowers the quality first and the size only if it must.
PNG
PNG screenshots compress less well. If a form takes JPG, choose JPG as the output and the file gets far smaller at the same look.
Forms with a pixel size too
Resize the photo to the stated dimensions first, then compress; the two tools link to each other.

Questions people ask

Will the photo still look good at 100 KB?

For a photo up to about 1500 pixels wide, yes. Larger photos lose fine detail; the tool keeps as much as the target allows and shows the result before you download.

Can I set a different size?

Yes. The target is a number you can change to anything from 5 KB up.

Does it change the format?

Not unless you ask. Keep the original format, or pick JPG, PNG or WebP.

Is there a limit on how many?

No. Drop a batch and every file is brought to the same target.